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Structures and luminescent properties of four compounds based on binuclear metal-terpyridine building blocks

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journal contribution
posted on 2016-01-28, 12:42 authored by Tian-Tian Li, Yin Zheng, Qiu-Yang Chen, Sheng-Run Zheng

Four new coordination polymers, [Cd(3-TPTP)Cl]2 (3-HTPTP = 4′-(3-tetrazolylphenyl)2,2′:6′2′′-terpyridine, 1), {[Cd(3-TPTP)(pBDC)0.5]∙4H2O}n (pH2BDC = 1,4-benzenedicarboxylic acid, 2), {[Mn(3-TPTP)(mBDC)0.5]∙5H2O}n (mH2BDC = 1,3-benzenedicarboxylic acid, 3), and [Pb(3-TPTP)(H2O)2]∙OH (4), were obtained. Compounds 13 are composed of binuclear [M2(3-TPTP)2] ring as building unit. In 1, the binuclear rings pack into a 3-D supramolecular framework via various hydrogen bonds. In 2 and 3, the binuclear rings are connected by mBDC2− and pBDC2−, respectively, resulting in two types of 1-D chains. In 4, the mononuclear [Pb(3-TPTP)] units are connected by Pb⋯N weak interactions, giving a chiral 1-D coordination chain, which is further connected by O–H⋯N interaction to form a chiral 3-D supramolecular framework. The phase purity of 14 and luminescence properties of 1, 2, and 4 were also investigated.

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